<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>

  <body>
    <div id="app">
      
      <ul>
        <li
          v-for="(item, index) in dataList"
          :key="index"
          @click="del(item.id)"
        >
          <span>{{item.id}}</span>
          <button>{{item.content}}</button>
        </li>
      </ul>
      <button @click="sc">生成</button>
    </div>
    <script src="./vue.js"></script>
    <script>
      const app = new Vue({
        el: "#app",
        data: {
          dataList: [
            {id:1 ,content:"删除"},
            {id:2 ,content:"删除"},
            {id:3 ,content:"删除"},
            {id:4 ,content:"删除"}
          ],
          randomVal: "",
        },
        methods: {
          sc() {
            this.dataList.push({ id: Math.floor(Math.random() * 20), content: "删除" });
          },
          del(id) {
          this.dataList = this.dataList.filter((item) => item.id !== id);
          }
        },
      });
    </script>
  </body>
</html>
